我想写一个这样的函数函数(str,find){}这样当我有一个类似str的时
大家好,你好,你好,大家好
和术语查找类似"你好",我得到的结果
<span class="match">Hello</span> every body, <span class="match">HeLlo</span> and <span class="match">hElLo</span> everyone blah
echo preg_replace('~Hello~i', '<span blabla>'0</span>', 'Hello every body, HeLlo and hElLo everyone blah');
给出
<span blabla>Hello</span> every body, <span blabla>HeLlo</span> and <span blabla>hElLo</span> everyone blah